We put together a simple CDN so targeted versions of Ionic can be used for online examples (plunkers, codepens and jsfiddles), and encourage developers to do the same:
http://code.ionicframework.com/
However, as a reminder its best to use your own local copies of the framework’s files when building a Cordova/Phonegap app. The CDN, and each of Ionic’s versions, are provided only for online demo conveniences, and should not to be used in Cordova/Phonegap apps.
Happy coding